<template>
	<div>
		<div class="search">
			<input type="text" v-model="keyword" placeholder="输入城市名或拼音" class="search-input" />
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li v-for="item of list" :key="item.id" class="search-item  border-bottom" @click="handleCityClick(item.name)">
					{{item.name}}
				</li>
				<li class="search-item  border-bottom" v-show="hasNoData">
					没有找到匹配数据
				</li>
			</ul>
		</div>
	</div>
</template>
<script>
import { mapMutations } from 'vuex'
import Bscroll from 'better-scroll'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  methods: {
    handleCityClick (city) {
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.search
	height 0.72rem
	padding 0 0.1rem
	background $bgColor
	.search-input
		box-sizing border-box
		width 100%
		height 0.62rem
		padding 0 0.1rem
		line-height 0.62rem
		text-align center
		border-radius 0.06rem
		color #666
.search-content
	position absolute
	overflow hidden
	top 1.58rem
	left 0
	right 0
	bottom 0
	background #eee
	z-index 1
	.search-item
		line-height 0.62rem
		padding-left 0.2rem
		color #666
		background #fff
</style>
